Baton Rouge Air Quality in April
Across 2019–2025, Baton Rouge's April air quality had a median AQI of 55 (Moderate) over 210 monitored days in the Baton Rouge, LA area. 1.4% of April days (3 of 210) reached Unhealthy for Sensitive Groups or worse, and ground-level ozone set the daily AQI on 50.5% of days. The cleanest April on record here was 2019 (median AQI 52, 0 days above 100) and the worst was 2024 (median 55, 2 days above 100, peak AQI 119).
- Good: 31.0%
- Moderate: 67.6%
- Unhealthy for Sensitive Groups: 1.4%
- Unhealthy or worse: 0.0%
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How is the air in Baton Rouge in April?
Moderate on a typical day: median AQI 55 across 2019–2025, with 1.4% of April days above AQI 100. Ground-level ozone is the main driver.
- ✓31.0% of April days were Good (AQI 0–50), 67.6% Moderate (51–100).
- ✓3 days of 210 reached AQI 101+; the April peak was 119.
- ✓Best April: 2019; worst April: 2024.
Frequently asked questions
What is the air quality like in Baton Rouge in April?▾
Across 2019–2025, the median daily AQI in Baton Rouge in April was 55 (Moderate). 31.0% of days were Good, 67.6% Moderate, and 1.4% reached Unhealthy for Sensitive Groups or worse, based on 210 monitored days in EPA's Air Quality System.
Is April a good time for outdoor exercise in Baton Rouge?▾
A typical April day in Baton Rouge is Moderate (median AQI 55): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 71 of April days (1.4%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
Which pollutant causes Baton Rouge's April air quality problems?▾
Ground-level ozone set the daily AQI on 50.5% of April days in Baton Rouge. The highest April AQI recorded in 2019–2025 was 119 (Unhealthy for Sensitive Groups), in 2024.
Baton Rouge April air quality, year by year
Baton Rouge April air quality by year (Baton Rouge, LA, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019cleanest | 30 | 52 | 0 | 97 | O3 |
| 2020 | 30 | 57 | 0 | 100 | O3 |
| 2021 | 30 | 52 | 0 | 100 | O3 |
| 2022 | 30 | 58 | 1 | 115 | O3 |
| 2023 | 30 | 53 | 0 | 71 | PM2.5 |
| 2024worst | 30 | 55 | 2 | 119 | O3 |
| 2025 | 30 | 57 | 0 | 93 | PM2.5 |
What April air means in Baton Rouge
A typical April day in Baton Rouge is Moderate (median AQI 55): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 71 of April days (1.4%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
April's median AQI of 55 is in line with Baton Rouge's whole-year median of 53, so this period is neither a clean nor a dirty stretch for the area. Nationally, the median April AQI across every EPA metro area (100,677 metro-days, 2019–2025) is 44, so Baton Rouge runs above the national April norm; 1.4% of its April days topped AQI 100 versus 0.7% nationally (about the same).
April is part of Baton Rouge's spring season (March, April, May); the spring page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Baton Rouge
The latest EPA AirNow observation puts Baton Rouge's AQI at 46 (PM2.5). The figures above are multi-year month statistics, not today's reading.
View current Baton Rouge air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Baton Rouge, LA), 2019–2025. Daily AQI per CBSA is the highest AQI reported by any monitor in the area that day; the defining parameter is the pollutant that set it. Month and season statistics pool every such day in the period across all years listed. Retrieved 2026-09-09.